A magnitude 5.9 quake struck the forested Panama-Colombia border on Tuesday, the U.S. Geological Survey said, but there were no immediate reports of damage. The quake, which was originally reported as magnitude 6.1, was very shallow at a depth of only 6.2 miles (10 km).It was located about 160 miles (258 km) southeast of the capital of Panama, where the quake was felt, according to a tweet by the country's emergency services. Jose Donderis, the director of Panama's emergency services, said that authorities were monitoring the situation, but had not received reports of damage. ...